LM4930 - Audio Subsystem

Product Overview

National Semiconductor

Part number	LM4930
Manufacturer	National Semiconductor
File Size	966.39 KB
Description	Audio Subsystem
Datasheet	LM4930 Datasheet
Additional preview pages of the LM4930 datasheet.

The LM4930 is an integrated audio subsystem that supports voice and digital audio functions.

The LM4930 includes a high quality I2S input stereo DAC, a voice band codec, a stereo headphone amplifier and a high-power mono speaker amplifier.

an I2S serial interface for full range audio, a 16-bit PCM bi-directional serial interface for the voice band codec and an two-wire interface for control. The full range music path features an SNR of 86dB with a 16-bit 48kHz input. The stereo DAC can also be used while the voice codec is in use. The headphone amplifier delivers 25mWRMS to a 32Ω single-ended stereo load with less than 0.5% distortion (THD+N) when AVDD = 3V. The mono speaker amplifier delivers up to 300mW into an 8Ω load with less.

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Published: Mar 22, 2005 |